http://qs321.pair.com?node_id=1165359


in reply to Re: i2c lcd Custom Characters
in thread i2c lcd Custom Characters

James

I have seen a lot of comments about the i2c bus voltages and the Pi.

The GPIO pins in normal use are not 5 volt tolerant but the GPIO's setup for the i2c bus are,
and my connection to this i2c backpack & lcd is direct with no level shifting. The backpack/lcd are supplied from one of the the Pi's 5 volt pins (pin 2).

Reading from and writing to the device have been consistent for several weeks.